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  • STM32F103VET6 - CZ miniSTM32F103VE-EK

    CZ miniSTM32F103VE-EK

    Overview

    Board Name CZ miniSTM32F103VE-EK
    Brand Unknown
    Origin AliExpress, China
    Microcontroller Part STM32F103VET6
    Package LQFP100
    Core Cortex-M3
    FLASH 512KB
    SRAM 64KB
    Max. Clock Speed 72MHz
    Crystals HSE (High Speed External) 8MHz
    LSE (Low Speed External) 32.768kHz
    Power Sources Any +3.3V pin (+3.3V)
    Any +5V pin (+5V)
    USB connector (+5V)
    Regulator manufacturer Advanced Monolithic Systems Inc.
    Regulator part number AMS1117
    Regulator package SOT223
    Output +3.3V @ 1000mA
    Battery holder Yes
    Connectivity Headers 2x 2x25 male dupont (2.54mm)
    Specific NRF24L01 (2x4 female dupont (2.54mm))
    TFT (2x16 female dupont (2.54mm))
    ESP-1 (2x4 female dupont (2.54mm))
    SD-card connector
    Debug JTAG (20-pin IDC)
    USB Mini
    Mini (Serial)
    I/O LEDs Power LED (Pwr, +3.3V)
    User LED (DS1, PE5, sink)
    User LED (DS2, PE6, sink)
    Buttons, switches and jumpers Reset button (K1, NRST, active low)
    2-way jumper (BOOT0)
    2-way jumper (BOOT1)
    User button (K2, PE3, active low)
    User button (K3, PC5, active low)
    1-way jumper (MCU_RXD, Enable Rx to CH340G)
    1-way jumper (MCU_TXD, Enable Tx to CH340G)
    Switch (Pwr, +5V USB)
    Other devices HK24C04 (4k EEPROM)
    Winbond W25Q16DVSIG (16Mb FLASH)
    CH340G USB to Serial
    PCB Colour Blue
    Size 105mm x 76mm
    Mounting 4x mounting hole (M3)
    Remarks
    • Warning: The +5V pins on this board are directly connected to the +5V pin of the USB connector. There is no protection in place. Do not power this board through USB and an external power supply at the same time.

    Resources

    Pictures

    CZ miniSTM32F103VE-EK

    CZ miniSTM32F103VE-EK Top view

    CZ miniSTM32F103VE-EK Bottom view

    Header 1

    Pin Connected to
    GND Ground plane
    3V3 +3.3V rail
    PC14 PC14
    PC15 PC15
    PE6 PE6
    PC14 PC14
    PE4 PE4
    PE5 PE5
    PE2 PE2
    PE3 PE3
    PE0 PE0
    PE1 PE1
    PB8 PB8
    PB9 PB9
    PB6 PB6
    PB7 PB7
    PB4 PB4
    PB5 PB5
    PD7 PD7
    PB3 PB3
    PD5 PD5
    PD6 PD6
    PD3 PD3
    PD4 PD4
    PD1 PD1
    PD2 PD2
    PC12 PC12
    PD0 PD0
    PC10 PC10
    PC11 PC11
    PA14 PA14
    PA15 PA15
    PA12 PA12
    PA13 PA13
    PA10 PA10
    PA11 PA11
    PA8 PA8
    PA9 PA9
    PC8 PC8
    PC9 PC9
    PC6 PC6
    PC7 PC7
    GND Ground plane
    5V +5V rail
    3V3 +3.3V rail
    3V3 +3.3V rail
    BOOT0 BOOT0
    BOOT1 BOOT1
    GND Ground plane
    GND Ground plane

    Header 2

    Pin Connected to
    GND Ground plane
    5V +5V rail
    PD14 PD14
    PD15 PD15
    PD12 PD12
    PD13 PD13
    PD10 PD10
    PD11 PD11
    PD8 PD8
    PD9 PD9
    PB14 PB14
    PB15 PB15
    PB12 PB12
    PB13 PB13
    PB10 PB10
    PB11 PB11
    PE14 PE14
    PE15 PE15
    PE12 PE12
    PE13 PE13
    PE10 PE10
    PE11 PE11
    PE8 PE8
    PE9 PE9
    PB2 PB2
    PE7 PE7
    PB0 PB0
    PB1 PB1
    PC4 PC4
    PC5 PC5
    PA6 PA6
    PA7 PA7
    PA4 PA4
    PA5 PA5
    PA2 PA2
    PA3 PA3
    PA0 PA0
    PA1 PA1
    3V3 +3.3V rail
    VREF VREF+
    PC2 PC2
    PC3 PC3
    PC0 PC0
    PC1 PC1
    GND Ground plane
    3V3 +3.3V rail

    USB

    Pin Connected to
    VCC +5V rail
    D- PA11
    D+ PA12
    ID N.C.
    GND Ground plane

    USB (Serial)

    Pin Connected to
    VCC +5V rail
    D- Pin 6
    D+ Pin 5
    ID N.C.
    GND Ground plane

    JTAG

    Pin Connected to JTAG SWD
    1 +3.3V rail VCC -
    2 +3.3V rail VCC -
    3 PB4 TRST -
    4 Ground plane GND -
    5 PA15 TDI -
    6 Ground plane GND -
    7 PA13 TMS SWDIO
    8 Ground plane GND -
    9 PA14 TCLK SWCLK
    10 Ground plane GND -
    11 N.C. RTCK -
    12 Ground plane GND -
    13 PB3 TDO SWO
    14 Ground plane GND -
    15 NRST RESET -
    16 Ground plane GND -
    17 N.C. N.C. -
    18 Ground plane GND -
    19 +5V rail N.C. -
    20 Ground plane GND -

    SD-card connector

    Pin Connected to
    RSV N.C.
    CS PC11
    DI PD2
    VCC +3.3V rail
    SCLK PC12
    GND Ground plane
    DO PC8
    RSV N.C.
    CD N.C.
    BODY Ground plane

    TFT

    Pin Connected to
    GND Ground plane
    3V3 +3.3V rail
    PC2 PC2
    5V +5V rail
    PD13 PD13
    PB6 PB6
    PA6 PA6
    PA7 PA7
    PB7 PB7
    PA5 PA5
    PD7 PD7
    PD11 PD11
    PD5 PD5
    PD4 PD4
    PD14 PD14
    PD15 PD15
    PD0 PD0
    PD1 PD1
    PE7 PE7
    PE8 PE8
    PE9 PE9
    PE10 PE10
    PE11 PE11
    PE12 PE12
    PE13 PE13
    PE14 PE14
    PE15 PE15
    PD8 PD8
    PD9 PD9
    PD10 PD10
    PE1 PE1
    GND Ground plane

    NRF2401

    Pin Connected to
    GND Ground plane
    VCC +3.3V rail
    CE PE4
    CSN PE2
    SCK PB3
    MOSI PB5
    MISO PB4
    IRQ PC13

    ESP-1

    Pin Connected to
    UTXD PB11
    GND Ground plane
    CH_PD PA0
    GPIO2 PC0
    RST PC3
    GPIO0 PC1
    VCC +3.3V rail
    URXD PB10

    HS0038

    Pin Connected to
    D PA1
    - Ground plane
    + +3.3V rail

    DS18B20

    Pin Connected to
    + +3.3V rail
    D PD12
    - Ground plane

    IC - HK24C04 (4k EEPROM)

    Pin Connected to
    A0 Ground plane
    A1 Ground plane
    A2 Ground plane
    GND Ground plane
    SDA PB7
    SCL PB6
    WP Ground plane
    VCC +3.3V rail

    IC - Winbond W25Q16DVSIG (16Mb FLASH)

    Pin Connected to
    /CS +3.3V rail via 4.7kΩ resistor
    DO PA6
    IO2 +3.3V rail
    GND Ground plane
    DI PA7
    CLK PA5
    IO3 +3.3V rail
    VCC +3.3V rail